62
Page
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
Ver. 1.00
CONFIDENTIAL
Mode # Whole multi-unit system information (#0)
Unit information (#1 to #4)
19
Eͬ
Bypass valve
position**
ϬƚŽϵϵϵ;džϭϬƐƚĞƉƐͿ
closed position = 0
20
ZĂƚŝŽŽĨŚŽƚǁĂƚĞƌĂŶĚ
cold water**
ϬƚŽϵϵϵ;йͿ
21
Eͬ
22
23
24
25
WZKD/ŶŝƚŝĂůŝnjĂƚŝŽŶ
/ŶŝƚŝĂůŝnjĞƐĐƵƌƌĞŶƚŽĨŐĂƐƉƌŽƉŽƌƚŝŽŶĂůǀĂůǀĞ
ĂŶĚĨĂŶŵŽƚŽƌƐƉĞĞĚΎ
26
ƵƌƌĞŶƚǀĂůƵĞŽĨ
proportional valve
0 to 999 (mA)
27
dŚĞŶƵŵďĞƌŽĨ
combustion stages
(The water heater
ŚĂƐϰƐƚĂŐĞƐĨŽƌ
combustion.)
͞ϭ͟ŵĞĂŶƐϭƐƚƐƚĂŐĞ
͞Ϯ͟ŵĞĂŶƐϮŶĚƐƚĂŐĞ
͞ϯ͟ŵĞĂŶƐϯƌĚƐƚĂŐĞ
͞ϰ͟ŵĞĂŶƐϰƚŚƐƚĂŐĞ
͞Ϭ͟ŵĞĂŶƐEŽďƵƌŶŝŶŐ
28
Eͬ
29
ƐƚŝŵĂƚĞĚŽƵƚƉƵƚĨƌŽŵ
computer board
ϬƚŽϵϵϵ;ŬdhͬŚͿ
30
ĐƚƵĂůŽƵƚƉƵƚŽĨƵŶŝƚ
ϬƚŽϵϵϵ;ŬdhͬŚͿ
31
Eͬ
32
*
EEPROM Initialization of wate heater's computer
͗WƌĞƐƐƚŚĞ͞
INFO
͟ďƵƚƚŽŶŽŶƚŚĞĐŽŶƚƌŽůůĞƌǁŚŝůĞŝŶŵŽĚĞηϭϰ
ĂŶĚŵŽĚĞηϮϱĨŽƌĂƚůĞĂƐƚϯƐĞĐŽŶĚƐƚŽĐŽŵƉůĞƚĞůLJĐůĞĂƌƚŚĞ
memory in the error code history.
**540 (T-H3) models only